The Graph Below Has Two Odd-Degree Vertices, So No Euler

question 43

Multiple Choice

The graph below has two odd-degree vertices, so no Euler circuit exists. Suppose we would like to find a route that backtracks as little as possible. What duplicate edge could we create to help us find this route?

• A)between A and B
• B)between B and C
• C)between D and E
• D)between E and F

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